(2/2)
IANAL but I don't think Affero copyleft would be triggered by sending such outputs, even if the document-generating software was under AGPL.
Say LibreOffice was licensed AGPL, which ideally it would be, as its components are often used with web services now, like NextCloud servers. Say I saved an .ODF text document in LibreOffice and emailed you a copy. AFAIK that wouldn't oblige me to supply you with source code for LibreOffice.